German to English Medical Medical: Instruments

The type of "Schleifgerät" referred to in my text is the device used by podiatrists to buff away hard skin, like callouses. It is an electric, hand-held device to which a round file (or buffer) is attached. This buffer then rotates rapidly to buff away dead skin.

Obviously, a "grinding device" won't work. I am looking for the official term used in podiatry. I have searched for "buffing device", "electric buffer", "foot buffer", with no success. Does anyone know the proper term? Many thanks in advance for any help.